I‘m just saying that before each ride, I often try to consciously come up with a goal that is in line with my training needs. You could be doing hill repeats on a short, steep hill to train your VO2max. You could train pacing, etc. Just pootling around in between hills on the flats and then smashing it to get up a climb might be fun, but if you want to use that time for some form of training benefit, I‘d do it differently.